I read the Readme. So this is all just stuff you can do with Claude's cli interface? It edits files and runs utilities? And it does this with few enough errors that you can be productive by just chatting with it over ssh? Is Claude the only one that can do this?

Possibly Codex, but I've only used Claude Code so far.

Worth pointing out I'm not SSHing to a different device. Claude Code installed and running directly in Android terminal on my phone.

I've built ASP.NET Core APIs on-device this way. Install dotnet in the terminal and Claude can write code, build, run unit tests, and even run the API on localhost. Then use `git` and `gh` to commit, push and raise a PR.

Probably Claude Code and Codex are the currently best ones, Claude Code a bit faster, Codex a lot more precise and "engineering" focused.

As long as you figure out how to verify that the built thing actually does what it's supposed to, ideally with automated tests, it's almost fire-and-forget if you're good at explaining what you want and need.